<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/biubiubiu" method="post" >
用户名:<input type="text" name="username"><br/>
密码: <input type="password" name="password"><br/>
确认密码:<input type="password" name="pwplus"><br/>
<input type="submit" value="注册"><br/>
</form>
</body>
</html>